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タイトル: Time-Dependent Emission Enhancement of the Ethynylpyrene-o-Carborane Dyad and Its Application as a Luminescent Color Sensor for Evaluating Water Contents in Organic Solvents
著者: Nishino, Kenta
Yamamoto, Hideki
Ochi, Junki  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0003-4275-3898 (unconfirmed)
Tanaka, Kazuo  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-6571-7086 (unconfirmed)
Chujo, Yoshiki
著者名の別形: 西野, 健太
越智, 純毅
田中, 一生
中條, 善樹
キーワード: aggregation-induced emission
carboranes
excimer
luminescence
water sensor
発行日: 2-May-2019
出版者: Wiley
誌名: Chemistry - An Asian Journal
巻: 14
号: 9
開始ページ: 1577
終了ページ: 1581
抄録: The time‐dependent emission enhancement (TDEE) phenomena of the 1‐(o‐carboran‐1‐yl)ethynylpyrene dyad were reported. It was found that the emission intensity from the dyad increased in tetrahydrofuran (THF), acetone and dichloromethane with increasing incubation time. From the mechanistic studies, it was suggested that agglomeration of the dyad gradually proceeded in these media, followed by expression of excimer luminescence. Additionally, it was shown that the rates of TDEE of the dyad were sensitively accelerated in the presence of a trace amount of water. Based on this fact, a detection system for water contents in acetone was constructed. Before and after incubation for 96 h at room temperature, time courses of changes in optical properties were monitored. Finally, water contents in acetone can be estimated by the degrees of TDEE and emission color changes in the range from 0.1 wt % to 2.0 wt % and from 2.0 wt % to 20 wt %, respectively.
著作権等: This is the peer reviewed version of the following article: K. Nishino, H. Yamamoto, J. Ochi, K. Tanaka, Y. Chujo, Chem. Asian J. 2019, 14, 1577., which has been published in final form at https://doi.org/10.1002/asia.201900396. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
The full-text file will be made open to the public on 2 May 2020 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/241082
DOI(出版社版): 10.1002/asia.201900396
PubMed ID: 30895734
出現コレクション:学術雑誌掲載論文等

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